I have always been lazy when it comes to exercise - bores me rigid. Walking the dog when alive was only weather permitting!!! Husband did the cold rainy days... I have been feeling much better this last month and felt I wanted to exercise without having to jump around or jog. So last week in a desperate bid to also try and lose some weight, I bought a Pedometor, it`s a small digital unit which you clip to the waistband and it records every step you take, giving total steps as a reading. It`s a brillient way to gradually build up fitness, I have so far managed to improve on the previous days total steps. I look utterly rediculous stepping on the spot at the kitchen sink and while ironing (making sure no one`s around) but it really has motivated me into being more active. Today I am running on the spot in short spurts, and have also slept sooooo much better all this week too. I feel stiff on waking, but wears off after moving around. Jelly`s post & replies on exercise and oxygen is an interesting theory, maybe a Pedometor could be a starting point for some? But a good thing to have anyway to measure your own activity levels. I live in England and purchased from a program on TV called Diet Trials, so unfortunately I cannot guide you other than perhaps the internet to purchase one. For normal people they suggest 10,000 steps daily. Sounds a lot but nice to know what to aim for... Love Pat.